Motorola Corporation

Gerald R King

Leonard E Nelson

Robert D Lloyd

Thomas F Holmes

Michael R Marrs

In each receiver (40) at least one datecode is stored which defines a subscription period during which the receiver is entitled to display received messages. For each message (200) to be transmitted, a datecode which defines a particular subscription date to be associated with the message is generated, the datecode defined by a predetermined number of bits. The datecode is compressed into a compressed datecode (220) based on the datecode, the compressed datecode being less in number of bits than the predetermined number of bits of the corresponding datecode. A modified checksum word (230) for the message is generated based on the plurality of bits which represent the message (200) and the predetermined number of bits which represent the datecode that corresponds to the compressed datecode (220). The modified checksum word (230) is associated with the message and the compressed datecode (220) for transmission.

Method for compressing message checksum and message yearcode information

A radio receiver (110) for processing a message including information about a sports event includes a message processing element (555) for locating, within the message, a final flag (225) indicative of a status of the sports event and a controller (515) coupled to the message processing element (555) for determining whether the final flag (225) is equivalent to a first or a second value. The controller (515) further determines that a score indicated by the message is a non-final score when the final flag (225) is equivalent to the first value and determines that the score is a final score when the final flag (225) is equivalent to the second value.

Method and apparatus for selectively retaining messages received by a

A communication system (100) for identifying messages concerning particular sports teams includes a terminal (105) for transmitting a message about a sports event as a radio frequency signal. A radio receiver (110) receives and decodes the radio frequency signal to recover therefrom the message. The radio receiver (110) also determines whether an identification code associated with the radio receiver (110) is included within a first location (205) of the message or a second location (210) of the message. When the identification code is included within the first location (205), a sports team associated with the radio receiver (110) is determined to be a home team in the sports event. When the identification code is included within the second location (210), the sports team associated with the radio receiver (110) is determined to be a visitor team in the sports event.

Method and apparatus for identifying messages associated with a sports

A communication system (100) for alerting a user based upon content of messages transmitted to the user includes a terminal (105) for generating and transmitting a message having first and second recipient identifications (IDs) and first and second alert codes. A radio receiver (110) receives the message and determines whether the first recipient ID is equivalent to an ID associated with the radio receiver (110). When the first recipient ID is equivalent to an ID associated with the radio receiver (110), the radio receiver (110) selects one of the at least first and second alert codes based upon a location of the first recipient ID within the message and generates an alert associated with the one of the at least first and second alert codes.

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Ft. Lauderdale, FL, United States of America

Gerald R King